How to use

evaluateExpressionsAndExecuteList

method

in

org.camunda.bpm.engine.impl.AbstractQuery

public U executeSingleResult(CommandContext commandContext) {
 List<U> results = evaluateExpressionsAndExecuteList(commandContext, null);
 if (results.size() == 1) {
  return results.get(0);
 } else if (results.size() > 1) {
  throw new ProcessEngineException("Query return "+results.size()+" results instead of max 1");
 }
 return null;
}

public U executeSingleResult(CommandContext commandContext) {
 List<U> results = evaluateExpressionsAndExecuteList(commandContext, null);
 if (results.size() == 1) {
  return results.get(0);
 } else if (results.size() > 1) {
  throw new ProcessEngineException("Query return "+results.size()+" results instead of max 1");
 }
 return null;
}

public Object execute(CommandContext commandContext) {
 if (resultType==ResultType.LIST) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType==ResultType.SINGLE_RESULT) {
  return executeSingleResult(commandContext);
 } else if (resultType==ResultType.LIST_PAGE) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType == ResultType.LIST_IDS) {
  return evaluateExpressionsAndExecuteIdsList(commandContext);
 } else {
  return evaluateExpressionsAndExecuteCount(commandContext);
 }
}

public Object execute(CommandContext commandContext) {
 if (resultType==ResultType.LIST) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType==ResultType.SINGLE_RESULT) {
  return executeSingleResult(commandContext);
 } else if (resultType==ResultType.LIST_PAGE) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType == ResultType.LIST_IDS) {
  return evaluateExpressionsAndExecuteIdsList(commandContext);
 } else {
  return evaluateExpressionsAndExecuteCount(commandContext);
 }
}

@SuppressWarnings("unchecked")
public List<U> list() {
 this.resultType = ResultType.LIST;
 if (commandExecutor!=null) {
  return (List<U>) commandExecutor.execute(this);
 }
 return evaluateExpressionsAndExecuteList(Context.getCommandContext(), null);
}

@SuppressWarnings("unchecked")
public List<U> list() {
 this.resultType = ResultType.LIST;
 if (commandExecutor!=null) {
  return (List<U>) commandExecutor.execute(this);
 }
 return evaluateExpressionsAndExecuteList(Context.getCommandContext(), null);
}

@SuppressWarnings("unchecked")
public List<U> listPage(int firstResult, int maxResults) {
 this.firstResult = firstResult;
 this.maxResults = maxResults;
 this.resultType = ResultType.LIST_PAGE;
 if (commandExecutor!=null) {
  return (List<U>) commandExecutor.execute(this);
 }
 return evaluateExpressionsAndExecuteList(Context.getCommandContext(), new Page(firstResult, maxResults));
}

@SuppressWarnings("unchecked")
public List<U> listPage(int firstResult, int maxResults) {
 this.firstResult = firstResult;
 this.maxResults = maxResults;
 this.resultType = ResultType.LIST_PAGE;
 if (commandExecutor!=null) {
  return (List<U>) commandExecutor.execute(this);
 }
 return evaluateExpressionsAndExecuteList(Context.getCommandContext(), new Page(firstResult, maxResults));
}

public U executeSingleResult(CommandContext commandContext) {
 List<U> results = evaluateExpressionsAndExecuteList(commandContext, null);
 if (results.size() == 1) {
  return results.get(0);
 } else if (results.size() > 1) {
  throw new ProcessEngineException("Query return "+results.size()+" results instead of max 1");
 }
 return null;
}

public Object execute(CommandContext commandContext) {
 if (resultType==ResultType.LIST) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType==ResultType.SINGLE_RESULT) {
  return executeSingleResult(commandContext);
 } else if (resultType==ResultType.LIST_PAGE) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType == ResultType.LIST_IDS) {
  return evaluateExpressionsAndExecuteIdsList(commandContext);
 } else {
  return evaluateExpressionsAndExecuteCount(commandContext);
 }
}

@SuppressWarnings("unchecked")
public List<U> list() {
 this.resultType = ResultType.LIST;
 if (commandExecutor!=null) {
  return (List<U>) commandExecutor.execute(this);
 }
 return evaluateExpressionsAndExecuteList(Context.getCommandContext(), null);
}

@SuppressWarnings("unchecked")
public List<U> listPage(int firstResult, int maxResults) {
 this.firstResult = firstResult;
 this.maxResults = maxResults;
 this.resultType = ResultType.LIST_PAGE;
 if (commandExecutor!=null) {
  return (List<U>) commandExecutor.execute(this);
 }
 return evaluateExpressionsAndExecuteList(Context.getCommandContext(), new Page(firstResult, maxResults));
}